Attachment for preventing boiler incrustation.



No. 650,9I6. Patented June 5, I900.

W. A. SHEETS.

AT ACHMENT FOR PREVENTING BOILER INCBUSTATION.

(Application filed Apr. 18, 1899.) (No Model.) 2 Sheets-Sheet I.

I W mm 11 illlll h 1 [Jill/ENTER Wm %M 2 7 WW N0. 650,9l6. Patented June 5,1900. W. A. SHEETS.

ATTACHMENT FOR PREVENTING BOILER INCRUSTATION.

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(Application in pr. 13, 1899.)

2 Sheets-Sheet 2.

(No Model.)

[NI/ENTER M/wM M W WM UNITED STATES PATENT Felon.

VVILLTAM A. SHEETS, OF LEXINGTON, KENTUCKY.

ATTACHMENT FOR PREVENTING BOILER INCRUSTATION.

SPECIFICATION forming part of Letters l atent No. 650,916, dated June 5, 1900.

Application filed April 13, 1899.

To all whom it may concern:

Be it known that I, WILLIAM A. SHEETS, acitizen of the United States, and aresident of Lexington, in the county of Fayette and State of Kentucky,have invented certain new and useful Improvements in Attachments for Preventing Boiler Incrustation, of which the following is a specification.

My invention relates to an attachment for preventing boiler incrustation. Its object is to provide a simple and effective device which may be attached readily to one or to a series of boilers, through which the water is caused tocirculate, the salts separated therefrom, the purified water returned to the boiler, and the sediment discharged therefrom. This object is attained by the means described in the annexed specification and illustrated in the accompanying drawings, in which- Figure 1 is a rear elevation of a battery of two boilers with my device attached. thereto, with so much of the rear wall of a furnace as is necessary to show the manner of attaching my device. Fig. 2 is a detail view,in side elevation,'0f the same, the rear wall being shown in section. Fig. 3 is a view in side elevation of a single boiler with my device attached thereto, so much of a side wall being shown as is necessary to show the mode of attaching my device. Fig. 4 is a detail view,in end elevati0n,of the same, the side wall being shown in section.

Tapped into the under side of the boilers A and A, respectively, are vertical pipes b and I), joined by elbows b to horizontal pipes 19 and b", leading thence through the rear wall 0 of the furnace and joined by the elbows b and b to vertical pipes b and 11 which are tapped into the opposite ends of the cylinder B. Valves b and 19 are interposed in the pipes b and 1), between the wall C and the vertical pipes 12 and 11 The cylinder B communicates with the cylinder D by pipes cl and d between the ends of the cylinders. The heads of the cylinders B and D are held in place by rods b and d respec tively, passing through the cylinders and terminating in screw-threaded ends to receive nuts Z2 Z9 d and d upon the outside of the heads of the cylinders. These also serve as baffle-rods to stir up the water circulating through the cylinders and to assist in precipi- Serial No. 712,851. (No model.)

tating the salts, which may be discharged from the cylinders by boiler-pressure through the blow-out pipe (F, by opening its valve (1 and cutting off one of the boilers by closing either the valve 11 or 1) The difference in the pressures within the two boilers caused by the changes in the heat of the fire beneath them, due to opening a door near one or the other and the addition of fresh fuel, causes a constant circulation of water in one direction or the other between the boilers through the cylinders B and D. The sudden drop of temperature in the Water in passing from the boilers into the cylinders and the agitation of the flow by the rods b and (1 causes the salts to precipitate in the cylinders.

Although the cylinder D adds to the efli ciency of the device, it might be disconnected from the cylinder B at the coupling-nuts d and (1 the pipes d and d being closed up, and the blow-out pipe d? be tapped into the end of the cylinder B, as shown in dotted lines, Fig. 1, when the salts would be precipitated in the cylinder B and could be discharged through the blow-out pipe, as before described.

A feed-water pipe b may be tapped into the cylinder B for convenience in filling the boilers; but this construction is not essential to the operatiop of my device.

In Figs. 3 and 4 the manner of connecting my device to a single boiler is illustrated. The cylinders B and D and their connectingpipes are the same; but the vertical pipes 12 and Z) are tapped into the under side of the boiler A at its opposite ends, and the horizontal pipes b and b lead thence through the side wall 0 of the furnace. The difference in the temperature of the ends of the boiler causes the water to circulate freely through the cylinders B and D, where the salts are caused to precipitate and whence they may be discharged, as before described.

While I have shown my invention attached to one or a battery of two boilers, it is obvious that it might be attached to a greater number and that many more mechanical changes might be made without departing from the spirit or scope of my invention.

What I claim is 1. In an attachment for preventing boiler incrustation the combination of the cylinder A r s l located upon the outside of a furnace, pipes atthe opposite ends of the cylinder passing through the f urnace-Wall and communicating with a boiler or boilers at the under side thereof whereby the water in the boiler or boilers is caused to circulate through the cylinder, the sediment collected therein and the purified waters returned to the boilers and a blow-out pipe in said cylinder for discharging the sediment therefrom, substantially as shown and described.

2. In an attachment for preventing boiler incrustation the combination of the cylinders located one above the other 011 the outside of a furnace-wall and communicating with each other by pipes at their opposite ends, the

bafiie-rod passing through the cylinder and securing the heads thereof in place, pipes at the opposite ends of the cylinder passing through the Wall and communicating with a boiler or boilers at the under side thereof whereby the water is caused to circulate through the cylinder, the sediment collected therein and the purified water returned to the boiler or boilers, and the blow-out pipe in said cylinder whereby the sediment is discharged therefrom, substantially as shown and described.

4. In an attachment for preventing boiler incrustation the combination of the cylinder located upon the outside of a furnace-wall, pipes at the opposite end of the cylinder passing through the wall and communicating with a boiler or boilers at the under side thereof whereby the water in the boilers is caused to circulate through the cylinder the sediment collected therein and the purified water returned to the boilers, a valve located in each of said pipes between the cylinder and the furnace-wall, and the blow-out pipe whereby the sediment is discharged from the cylinder, substantially as shown and described.

\VILLIAM A. SHEETS.

Witnesses:

JAMES W. RYE, EVA Coons. 

